It took me 10 minutes to sync 126 songs.
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I didn't have nearly as steep a decline when using the app... If yours keeps doing that, you might want to have it looked at.
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You really need to see for yourself. For every person who thinks the watch is a mess, there's another person who thinks it is incredible.
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How are you requesting directions? If you are doing it through the phone, you tell it you want walking directions before you start.
If through the watch, try "hey Siri, walking directions to World of Beer." I haven't tried that myself, but worth a shot!
Yes, heartbeat is creepy!
Remember, Hey Siri only works when the watch is "on." If face is dark, it won't work.
I do agree with the poster who said that in the case of the watch, reading the manual really helps shorten the learning curve.